mapping

问题 I'd like to persist some JSON to elastic(search) that looks a little like this: { "name": "value", "points": [ { "lat": 0.0, "lon": 0.0 }, { "lat": 1.0, "lon": 1.0 } ] } Points being a list of the type geo_point in elastic. Because they're geo_point values I need to define the index mapping, but the closest I can see is to do this: "place": { "properties": { "name": { "type": "string" }, "points": { "properties": { "location": { "type": "geo_point" } } } } } Which would mean having each point

问题 >>> from weakref import WeakValueDictionary >>> class Foo(object): ... pass >>> foo = Foo() >>> db = WeakValueDictionary() >>> db['foo-id'] = foo >>> del foo >>> dict(db) {'foo-id': <__main__.Foo object at 0x4dd946c>} Why does it show this instead of an empty dictionary? Note that this code produces the result I'd expect: >>> db2 = WeakValueDictionary() >>> db2['disposable-id'] = Foo() >>> dict(db2) {} It also behaves as expected when executing a script (instead of the interactive interpreter

问题 I am calling Bloomberg Server API (for Stock Market Data) and getting Data back in a Dictionary<string, object> Where the Key to the dictionary is the Field Name on Bloomberg's side, and the object contains the data value from Bloomberg and can be string , decimal , DateTime , boolean etc. After I get the Bloomberg Data, I need to populate my strong type entities / classes with the values returned. Depending on what Field Names I send in my request to bloomberg, the returned Dictionary could

问题 I am quite new to Hibernate world. I have modeled by means of ER CASE TOOL (TOAD) my database and I have defined several User Data Type (Composite Type). For example assume I have a type Contact declared as follow in PostgreSQL CREATE TYPE Contact AS ( "email" Varchar, "phone" Varchar, "mobile" Varchar, "other" Varchar ); Now assume i use it on Users Entity like in the following SQL code CREATE TABLE Users( idUser Serial NOT NULL, login Character varying(20) NOT NULL, password Character

问题 I have a table called UserPermissions with a FK to the users table by userId and then a string column for the string value of an enum. The error I am seeing is NHibernate.MappingException: An association from the table UserPermissions refers to an unmapped class: GotRoleplay.Core.Domain.Model.Permission My Permission Enum: public enum Permission { [StringValue("Add User")] AddUser, [StringValue("Edit User")] EditUser, [StringValue("Delete User")] DeleteUser, [StringValue("Add Content")]

问题 I have a table called UserPermissions with a FK to the users table by userId and then a string column for the string value of an enum. The error I am seeing is NHibernate.MappingException: An association from the table UserPermissions refers to an unmapped class: GotRoleplay.Core.Domain.Model.Permission My Permission Enum: public enum Permission { [StringValue("Add User")] AddUser, [StringValue("Edit User")] EditUser, [StringValue("Delete User")] DeleteUser, [StringValue("Add Content")]

问题 I am using entity framework 4 in my current project, to read data from several table. Compare using ADO.net, it EF is very easy, with simple code that can do lots of work or me. But there is one problem... e,g there is and exiting table call Table "MTable" i only want to query two column from this table, however this table is share with other two ppl who are also working on it. they might add column or modify constrains on this table. Only one thing i am sure is that, the two column i want to

问题 I was wondering how I would go about mapping 2D screen coordinates to a 3D world (specifically the xz plane) knowing: -position of the camera -equation of the screen plane -equation of the xz plane All I want to do is have the land on the xz plane light up when I hover the mouse over it. Any help is greatly appreciated! Thanks! 回答1: If your world is rotated and shifted such that the camera is at x=y=z=0 (world coordinates), the world z coordinate increases away from the viewer (into the

问题 I was wondering how I would go about mapping 2D screen coordinates to a 3D world (specifically the xz plane) knowing: -position of the camera -equation of the screen plane -equation of the xz plane All I want to do is have the land on the xz plane light up when I hover the mouse over it. Any help is greatly appreciated! Thanks! 回答1: If your world is rotated and shifted such that the camera is at x=y=z=0 (world coordinates), the world z coordinate increases away from the viewer (into the

问题 I have a recipe entity which have some tags (many to many mapping) and I want to search recipes by tags. Here's my Recipe entity: /** * @ORM\Entity * @ORM\Table(name="recipes") * @ORM\HasLifecycleCallbacks * @ExclusionPolicy("all") */ class Recipe { /** * @ORM\Id * @ORM\Column(type="integer") * @ORM\GeneratedValue(strategy="AUTO") * @Expose */ protected $id; /** * @ORM\Column(type="string", length=150) * @Expose */ protected $name; ... /** * @ORM\ManyToMany(targetEntity="RecipesTag",